From 3-D Subway Ads to Mouth Vision

‘Gossip Girl’ costars Ed Westwick and Leighton Meester were spotted with their tongues out on the set, but there are other tongue and taste developments that are far more bizarre.

While Leighton Meester’s playful facial expression was probably just to relieve tension, scientists are in the process of developing tongue-based vision that would give military personnel superhuman strength.

Tongues have also been used extensively in marketing, from Coke Zero’s taste-based comparison commercials to 3-D tongues used to advertise the Reach toothbrush at a Japanese subway station.